Description
The Burger Tuning Group 19 JB4 is the most advanced plug & play tuner for the EA888 Gen4-based VW Taos and Jetta 1.5TSI platforms, delivering up to 45hp and 60ft-lb on 93 octane and 35hp / 50ft-lb on 91 octane fuel.
Equipped with full CANbus integration, the JB4 offers precise boost control, direct AFR management, ethanol (E85) support, boost-by-gear mapping, and advanced safety systems to protect your engine from knock, lean conditions, or overboost. Installation is quick, fully reversible, and requires no ECU flash—making it ideal for warranty-conscious owners.
With built-in logging, code reading/clearing, and compatibility with JB4 Mobile for wireless tuning changes, the JB4 transforms your Taos or Jetta into a faster, more responsive machine while retaining stock drivability.
JB4 Features & Benefits
-
Power gains:
- 91 Octane: +35hp / +50ft-lb
- 93 Octane: +45hp / +60ft-lb
- Faster 0–60 mph and 1/4 mile times
- 8 preloaded VW-specific JB4 maps for different fuels and mods
- Ethanol (E85) compatible tuning maps included
- Reads and deletes fault codes
- Boost-by-gear control for optimal traction in 1st–3rd gear
- Real-time data logging of up to 40 parameters via JB4 app
- CANbus OBDII integration for unmatched tuning precision and safety
- Compatible with JB4 Mobile for wireless logging, tuning changes, and firmware updates
- Works with all driving modes; maintains factory-smooth drivability
- No fuel economy loss during normal driving
- Rugged billet aluminum JB4 enclosure included
- Plug & Play installation—no splicing or ECU flashing
- Not VIN-locked; easily removable and transferable
- Made in the USA with a 5-year warranty
Vehicle Fitment
Volkswagen:
- 2021+ VW Taos 1.5TSI (North American model)
- 2022+ VW Jetta 1.5TSI (North American model)
What is a JB4?
The JB4 is a plug & play performance tuning system for turbocharged vehicles that connects between your car’s sensors and ECU, optimizing boost, fuel, and timing to unlock substantial performance gains. With CANbus integration, advanced safety protocols, E85 compatibility, and ongoing free firmware updates, the JB4 stands as the gold standard in performance piggyback tuning. Fully reversible and not VIN-locked, it’s the perfect performance upgrade for daily-driven Volkswagens.
